1. plural of den; small rooms used as private studies or family rooms
2. plural of den; lairs or shelters of wild animals
3. plural of den; places where people gather for illicit or questionable activities
Usage: informal

Examples

• The house had two cozy dens where the family could relax.
• Bears retreat to their dens during winter hibernation.
• The foxes built their dens in the hillside.
• Both dens in the basement served as home offices.
• Wolves often share dens with their pack members.
• The old mansion had several dens filled with antique furniture.